Honestly, what a standout for a solo effort in such a short amount of time — this would be impressive even coming from a full team. Kudos, seriously.
The visuals and music really got me — great atmosphere, everything feels cohesive and polished. And that intro tutorial is a nice differential too, teaching you as you actually play instead of just dumping instructions on you like most jam games do. Super intuitive, smooth learning curve.
The narrative idea is creative, and that countdown mechanic adds a nice bit of tension without feeling gimmicky. Physics and animation are polished down to the small details too — you can tell a lot of care went into how everything moves and feels.
Add a few more maps and honestly, this is ready to publish as-is. I would buy this game in a second. Incredible work. (* ﾟ∀ﾟ)ﾉｼ